I think this warrants its own thread

I know that a lot of people, even people who want Ren and Kyoko to get together in the end, dislike the idea of Sho and Kyoko having sibling-like feelings for each other. However, that they DO, especially on Sho's part (mostly on Sho's part, actually), keeps popping up in my mind. I don't mind the idea but even if I did I wouldn't be able to help thinking it, because...
Sho NEVER shows any physical desire for Kyoko (and Ren DOES, so it's not just a matter of showing desire not being the author's style), even after it started to look like he had realized that Kyoko was important to him. The way he reacts is just so OFF, to me, for a lover. I'd actually think better of Sho if he love Kyoko as a sister, not because of anything to do with Ren, but because it would make his treatment of her in the past much less ugly...because you DO take advantage of family, though not to that extent, most likely.
But...can anyone think of a time when Sho acts really boyfriend-like, in a way that can't be construed as brotherly? For example, such as when Ren folds his arms and turns around to go back to the hotel, lest he molest Kyoko on the spot (when they are at the river in 92/93), or when he is about to kiss her in 95/96, or when he wonders what he would have done, had he and Kyoko been alone when he gave her the rose. (I still need to see the official translation on that one, I'm a bit iffy on it as it is.)
I don't mind if Sho is really in love with Kyoko either, so if there is evidence for it that I've just missed, I'd like to see it clearly.